Dental restorations using novel palladium silver alloy casting

Details Dental restorations using novel palladium silver alloy casting Dental restorations using novel palladium silver alloy casting

1982-05-24

1984-11-13

Dean, R.

Dentistry

Prosthodontics

Tooth construction

A61C 1308

Patent

active

044823231

ABSTRACT:
A dental restoration includes a casting of a palladium/silver alloy which comprises 45-60 percent palladium, 25-45 percent silver, 3-15 percent tin and/or indium, 0.3-9.0 percent zinc, 0.1-1.0 percent silicon, up to 0.25 percent rhenium and/or iridium, and up to 5 percent in total of one or more of copper, magnesium, gallium and ruthenium. The dental restorations obtained by firing porcelain against castings of this alloy exhibit freedom from discoloration, and excellent bond strength is are obtained between the porcelain coating and the underlying alloy casting.

REFERENCES:
patent: 3929474 (1975-12-01), Ingersoll
patent: 3929475 (1975-12-01), Ingersoll

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